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Sunday, July 25, 2010

1. ADVANTAGES OF DSL:
DSL IS ALWAYS ON,24 HRS A DAY
NO DIAL-UP REQUIRED
DATA SECURITY
NO SECOND PHONE LINE REQUIRED
USE THE PHONE AT THE SAME TIME YOU ARE ON-LINE
NO DROPPED CONNECTIONS
SUPPER FAST SPEEDS
COST EFFECTIVE

2. DIAL-UP MODE OF INTERNET ACCESS

3. SIGNAL CODING USED IN DSL TECHNOLOGY
SPECTRUM DISTRIBUTION: -

4. SOME OF THE CODING TECHNIQUE :THE 2B1Q TECHNIQUE: -

5. TYPES OF DSL TECHNOLOGY
IDSL
G.LITE
HDSL
G.SHDSL
ADSL
VDSL

6. APPLICATIONHDSL APPLICATION -
LEASED LINE
LEASED LINE FOR INTERNET ACCESS
LEASED LINE BETWEEN TWO USER PREMISES
LEASED LINE BETWEEN TWO USER PREMISES
USING INTERNET

2 comments:

Anonymous
said...

A young boy and his dad went out fishing one nice morning. After a few quiet hours out in the boat, the boy became curious about the world around him. He looked up at his father and asked "How do fish breath under water?" His dad thought about it for a moment, then replied "I really don't know, son." The boy sat quietly from another moment, then turned back to his dad and asked, "How does our boat float on the water?" Once again his father replied, "Don’t know, son." Pondering his thoughts again, a short while later, the boy asks "Why is the sky blue?" Again, his dad answered, "Don’t know, son." The curious boy, worried he was disturbing his dad, asks this time "Dad, do you mind that I'm asking you all of these questions?" "Of course not son", replied his father, "How else are you ever going to learn anything?" Don't you think that many articles and even whole internet resources are much alike this story?